      .fixed-table-container thead th .sortable {
          background-image: url('/css/plugins/images/sort_sort.png');
          cursor: pointer;
          background-position: right;
          background-repeat: no-repeat;
          padding-right: 30px;
      }
  
     .fixed-table-container thead th .asc {
         background-image: url('/css/plugins/images/sort_asc.png');
         cursor: pointer;
         background-position: right;
         background-repeat: no-repeat;
         padding-right: 30px;
     }

     .fixed-table-container thead th .desc {
         background-image: url('/css/plugins/images/sort_desc.png');
         cursor: pointer;
         background-position: right;
         background-repeat: no-repeat;
         padding-right: 30px;
    }